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‎coursPythonYoutube/Chapitre_1_Demarrer_la_formation_Python.ipynb‎

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{
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"cells": [
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{
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"cell_type": "markdown",
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"id": "fb22bc11",
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"metadata": {},
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"source": [
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"# Démarrer la formation\n",
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"Bienvenue dans ce cours d'initiation à Python."
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]
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},
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{
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"cell_type": "markdown",
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"id": "4c3f6dfe",
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"metadata": {},
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"source": [
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"## Objectifs pédagogiques\n",
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"- Comprendre ce qu'est Python et ses cas d'usage\n",
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"- Installer un environnement Python avec Anaconda\n",
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"- Lancer et tester ses premiers scripts dans Jupyter Notebook"
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]
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},
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{
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"cell_type": "markdown",
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"id": "bfe1a59a",
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"metadata": {},
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"source": [
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"## Pourquoi apprendre Python ?\n",
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"Python est un langage polyvalent, lisible, utilisé dans :\n",
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"- la **data science** (NumPy, Pandas, scikit-learn)\n",
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"- le **web** (Django, Flask)\n",
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"- l’**IA** (TensorFlow, PyTorch)\n",
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"- l’**automatisation** (scripts, bots)\n",
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"- les **jeux**, l’**IoT**, la **cybersécurité** et plus encore."
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]
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},
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{
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"cell_type": "markdown",
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"id": "7f1348e0",
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"metadata": {},
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"source": [
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"## Installation de Python avec Anaconda\n",
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"1. Rendez-vous sur [anaconda.com](https://www.anaconda.com/products/distribution)\n",
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"2. Téléchargez la version pour votre système (Windows, macOS, Linux)\n",
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"3. Installez en suivant les instructions par défaut\n",
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"\n",
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"Une fois installé :\n",
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"- Lancez **Anaconda Navigator** ou ouvrez un terminal et tapez `jupyter notebook`\n"
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]
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},
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{
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"cell_type": "markdown",
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"id": "f32f89ce",
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"metadata": {},
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"source": [
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"## Premiers pas avec Jupyter Notebook\n",
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"Dans une cellule de type Code, tapez ceci puis exécutez-la avec **Shift + Entrée** :"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "e214bcea",
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"metadata": {},
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"outputs": [],
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"source": [
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"print(\"Bienvenue dans Python !\")"
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]
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},
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{
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"cell_type": "markdown",
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"id": "1d1daef5",
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"metadata": {},
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"source": [
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"## Exercice : écrire un message personnalisé\n",
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"Demandez à l’utilisateur son prénom, puis affichez un message personnalisé."
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "4e072407",
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"metadata": {},
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"outputs": [],
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"source": [
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"prenom = input(\"Quel est ton prénom ? \")\n",
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"print(f\"Heureux de te rencontrer, {prenom} !\")"
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]
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},
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{
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"cell_type": "markdown",
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"id": "29f2a146",
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"metadata": {},
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"source": [
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"## Quiz : Python & installation\n",
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"**1. Quel outil permet de lancer Jupyter Notebook ?**\n",
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"- a) Chrome\n",
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"- b) Anaconda \n",
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"- c) VSCode\n",
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"- d) Git\n",
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"\n",
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"**2. Que fait la commande `print(\"Hello\")` ?**\n",
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"- a) Elle stocke une variable\n",
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"- b) Elle affiche un message \n",
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"- c) Elle importe un module\n",
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"- d) Elle crée un fichier\n",
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"\n",
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"**3. Quelle extension ont les fichiers Jupyter ?**\n",
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"- a) `.py`\n",
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"- b) `.txt`\n",
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"- c) `.ipynb` \n",
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"- d) `.csv`\n",
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"\n",
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"**4. Quel est l'avantage principal de Python ?**\n",
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"- a) C'est un langage peu utilisé\n",
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"- b) Il est complexe mais rapide\n",
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"- c) Il est facile à lire \n",
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"- d) Il remplace Excel\n",
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"\n",
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"**5. Que signifie `input()` ?**\n",
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"- a) Lancer un programme\n",
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"- b) Afficher une variable\n",
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"- c) Demander une saisie utilisateur \n",
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"- d) Lire un fichier"
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]
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}
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],
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"metadata": {
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"language_info": {
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"name": "python"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}

‎coursPythonYoutube/Chapitre_2_Premiers_scripts_et_variables.ipynb‎

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{
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"cells": [
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{
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"cell_type": "markdown",
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"id": "92e9f569",
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"metadata": {},
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"source": [
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"# Chapitre 2 – Premiers scripts et variables"
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]
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},
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{
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"cell_type": "markdown",
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"id": "2b6ceda8",
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"metadata": {},
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"source": [
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"Dans ce chapitre, vous allez apprendre les bases de la programmation avec Python :\n",
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"- les types de données fondamentaux\n",
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"- la création et conversion de variables\n",
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"- les opérations arithmétiques simples\n",
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"- la manipulation de texte (concaténation et f-strings)\n",
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"- un exercice pratique : mini-calculatrice\n",
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"- un quiz de validation des acquis"
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]
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},
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{
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"cell_type": "markdown",
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"id": "a09d78fa",
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"metadata": {},
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"source": [
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"## Comprendre les types de données de base"
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]
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},
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{
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"cell_type": "markdown",
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"id": "43f5c9f8",
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"metadata": {},
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"source": [
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"Python propose plusieurs types standards :\n",
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"- `int` : nombres entiers (ex. `10`)\n",
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"- `float` : nombres décimaux (ex. `3.14`)\n",
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"- `str` : chaînes de caractères (ex. `'bonjour'`)\n",
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"- `bool` : booléens (`True`, `False`)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "bb61bf30",
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"metadata": {},
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"outputs": [],
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"source": [
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"a = 10\n",
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"b = 3.5\n",
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"c = 'Bonjour'\n",
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"d = True\n",
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"print(type(a), type(b), type(c), type(d))"
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]
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},
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{
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"cell_type": "markdown",
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"id": "f59131ef",
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"metadata": {},
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"source": [
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"## Créer et convertir des variables"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "9561a401",
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"metadata": {},
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"outputs": [],
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"source": [
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"x = 7.9\n",
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"print(x)\n",
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"\n",
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"# Conversion float -> int\n",
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"y = int(x)\n",
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"print(y)\n",
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"\n",
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"# Conversion int -> string\n",
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"z = str(y)\n",
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"print(z, type(z))"
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]
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},
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{
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"cell_type": "markdown",
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"id": "5049d035",
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"metadata": {},
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"source": [
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"## Effectuer des opérations arithmétiques simples"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "99cc5e49",
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"metadata": {},
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"outputs": [],
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"source": [
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"a = 15\n",
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"b = 4\n",
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"print(\"Addition:\", a + b)\n",
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"print(\"Soustraction:\", a - b)\n",
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"print(\"Multiplication:\", a * b)\n",
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"print(\"Division:\", a / b)\n",
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"print(\"Puissance:\", a ** b)\n",
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"print(\"Modulo:\", a % b)"
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]
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},
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{
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"cell_type": "markdown",
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"id": "683e417f",
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"metadata": {},
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"source": [
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"## Formater et concaténer des chaînes de caractères"
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]
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},
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{
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"cell_type": "markdown",
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"id": "bf3ad448",
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"metadata": {},
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"source": [
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"### Méthode 1 : Concaténation avec `+`"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "877b2587",
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"metadata": {},
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"outputs": [],
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"source": [
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"prenom = \"Alice\"\n",
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"age = 28\n",
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"message = \"Bonjour, je m'appelle \" + prenom + \" et j'ai \" + str(age) + \" ans.\"\n",
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"print(message)"
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]
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},
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{
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"cell_type": "markdown",
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"id": "d9bd5dba",
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"metadata": {},
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"source": [
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"### Méthode 2 : Utiliser les f-strings (recommandé)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "d315ddb5",
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"metadata": {},
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"outputs": [],
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"source": [
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"prenom = \"Alice\"\n",
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"age = 28\n",
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"print(f\"Bonjour, je m'appelle {prenom} et j'ai {age} ans.\")"
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]
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},
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{
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"cell_type": "markdown",
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"id": "ea117b52",
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"metadata": {},
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"source": [
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"### Formater les nombres avec les f-strings"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "f4ab4d7f",
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"metadata": {},
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"outputs": [],
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"source": [
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"prix = 12.3456\n",
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"print(f\"Prix : {prix:.2f} euros\") # 2 chiffres après la virgule\n",
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"print(f\"Prix arrondi : {round(prix)} euros\")"
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]
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},
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{
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"cell_type": "markdown",
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"id": "431fb431",
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"metadata": {},
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"source": [
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"## Exercice : Créer une mini-calculatrice simple"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "3edb155f",
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"metadata": {},
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"outputs": [],
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"source": [
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"nb1 = float(input(\"Entrez un premier nombre : \"))\n",
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"nb2 = float(input(\"Entrez un deuxième nombre : \"))\n",
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"\n",
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"somme = nb1 + nb2\n",
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"produit = nb1 * nb2\n",
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"division = nb1 / nb2\n",
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"\n",
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"print(f\"La somme est : {somme:.2f}\")\n",
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"print(f\"Le produit est : {produit:.2f}\")\n",
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"print(f\"La division est : {division:.2f}\")"
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]
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},
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{
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"cell_type": "markdown",
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"id": "54a385ac",
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"metadata": {},
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"source": [
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"## Quiz : Vérifier les acquis sur les variables"
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]
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},
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{
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"cell_type": "markdown",
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"id": "ec0874d3",
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"metadata": {},
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"source": [
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"**1. Quel type correspond à `True` ?**\n",
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"- a) int\n",
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"- b) str\n",
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"- c) bool \n",
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"- d) float\n",
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"\n",
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"**2. Quel opérateur donne le reste d’une division ?**\n",
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"- a) `//`\n",
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"- b) `/`\n",
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"- c) `%` \n",
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"- d) `**`\n",
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"\n",
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"**3. Quelle fonction permet de convertir un texte en entier ?**\n",
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"- a) `float()`\n",
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"- b) `int()` \n",
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"- c) `str()`\n",
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"- d) `bool()`\n",
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"\n",
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"**4. Quelle syntaxe est correcte avec un f-string ?**\n",
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"- a) `'Bonjour ' + {nom}`\n",
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"- b) `\"Bonjour {nom}\"`\n",
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"- c) `f\"Bonjour {nom}\"` \n",
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"- d) `\"Bonjour\" + nom {}`"
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]
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},
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{
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"cell_type": "markdown",
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"id": "be849a84",
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"metadata": {},
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"source": [
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"## Pour aller plus loin\n",
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"Retrouvez la version vidéo de ce chapitre sur la chaîne YouTube Le Coin Stat :\n",
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"https://www.youtube.com/@LeCoinStat"
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]
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}
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],
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"metadata": {
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"language_info": {
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"name": "python"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}

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